What are common side effects of medications that contain beta blockers?

Beta blockers are medications that primarily work by blocking the effects of adrenaline on the beta-adrenergic receptors, leading to a decrease in heart rate and blood pressure. Common side effects associated with beta blockers include cold hands and feet due to reduced circulation, tiredness or fatigue as they can lower energy levels by slowing heart rate, slow heart rate itself (bradycardia), and exacerbation of asthma symptoms for those prone to respiratory issues because beta blockers can lead to bronchospasm in sensitive individuals.

The characteristics of the correct answer align well with these known effects of beta blockers, reflecting how the medications function and their influence on the body. Each symptom mentioned plays a role in how beta blockers interact with the cardiovascular and respiratory systems.